Wiper attachment for metalworking machines



Feb. 11, 1941. M. G. MURRAY 2,231,135

WIPER ATTACHMENT FOR METALWORKING MACHINES Filed Sept. 8, 1937 PatentedF b. 11, 1941 PATENT OFFICE WIPI'IR ATTACHMENT FOR METALWORK- I INGMACHINES Malcolm G. Murray, Ellwood City, Pa., assignor to National TubeCompany, a

New Jersey corporation of Application September $1937, Serial No.162,922

3Claims.

This invention relates to cleaning continuous tube or wire stock, andparticularly to an improved wiping device to be used in connection withmetal-working machines for cold-working 5 this class of material.

. When cold-working metal it is common practice to lubricate the work atsome stage during the working so as to keep the working-rolls and thework at a cool, even temperature. The lubricant usually used is a tallowdope, or oil, or some other cold-drawing lubricant. Any lubricant tendsto stick to the metal and, of course, has to be removed, for variousreasons, before it is sent to the trade. v

It is common practice to remove this coating of lubricant by allowing athin stream of kerosene or other solvent to run over the work whichtends to soften and dilute the lubricant. The lubricant, together withthe kerosene, or other solvent, is

then later removed by wiping the work by hand. This, of course, is anextra operation and very ineflicient.

It is one of the objects of this invention toprovide an automatic-meansfor continuously removing the lubricant from continuously drawn work,and thus'to eliminate the manual wiping thereof.

It is another object of my invention to provide a simple and inexpensiveadjustable wiping device which can be easily attached to a machine andwhich is very efiicient in its operation.

Various other objects and advantages of this invention will be moreapparent during the course of the following specification and will beparticularly pointed out in the appended claims.

In the accompanying drawing I have shown, for the purpose ofillustration, one embodiment which my invention may assume in practice.

In the drawing:

Figure 1 is a plan view of part of a straightening machine as used inconnection with metalworking machines embodying my improved wipingdevice;

Figure 2 is an end view of the machine shown in Figure 1;

Figure 3 is an isometric view of my improved wiping device unassembledshowing the relation of the difierent parts; and,

Figure 4 is an isometric view of my improved wiping device showing theparts assembled.

This invention is shown on a conventional type straightening machine,such as used in connection with tube or rouhd stock metal-rollingmachines. Such a straightener consists of skewed-rolls 5 and 6 whichsimultaneously impart a combined rotary and longitudinal movement to thecontinuous lengthof tube stock I to give it a helical-like forwardmovement as it passes through the machine. I

My improved wiping device consists of a bracket 5 member having a flatplate-like portion 8 and having a cylindrical sleeve-like portion 8integrally arranged therewith. The bracket is attached by means of themachine screws Hi, to the end journal box 6a of the straightener, asshown in 10 Figures 1 and 2 or can be attached to the frame or to anyother rigid part of the machine in any suitable manner.

A post member I I, having a flat end portion l2 and a threaded portion I3, is adjustably held in 15 the cylindrical portion of the bracket bythe locking-nuts M. The wiper blade l5, having slotted holes I6, isadjustably secured to the flat end portion of the post by theplate-washer l1 and the bolts or studs l8.

The wiper blade can be made from any pliable or yielding material which.will not absorb oil and which has satisfactory wearing qualities.Synthetic rubber seems to be a most satisfactory material to use.

It will readily be seen that this wiping device, due to itsconstruction, can be readily adjusted sidewise by means of the nuts I ina plane perpendicular to the path of travel of the tube through themachine to take care of various sizes of stock, and it also can beadjusted angularly by turning the post to the most satisfactory positionfor the best cleaning results. The holes in the wiper block are slottedin order that the wiper blade may be adjusted to position in the post incase of wear.

In operation it will be seen that, as the tube stock leaves thestraightening machine, it comes in contact with the wiper blade and, dueto the helical-like forward movement of the tube out of the machine, theentire outer surface of the tube is thoroughly cleaned and freed fromgrease.

While I have in this application specifically described one embodimentwhich my invention may assume in practice, it will be understood thatthis embodimentis merely for the purpose of i1- lustration anddescription and that various other forms may be devised within the scopeof myinvention, as defined by the appended claims.

I claim:

1. A device for cleaning tubular stock and the like comprising a pliablerubber wiping blade, a threaded post member, means for adjustablyholding the rubber blade on one end of said post, a bracket memberadapted to be attached to the 66 frame of a metal working machine, saidbracket member having a cylindrical portion adapted to receive saidthreaded post, and an adjusting nut positioned on the threaded portionof said post at each end of the cylindrical portion of the bracket tohold said post member adjustably therein.

2. A wiping device of the class described comprising a pliable wipingblade made from a resilient material, means for holding said wipingblade, means for adjusting the position of said wiping blade in saidholding means whereby the wiping blade can be adjusted therein so thatthe proper amount of the wiping blade is exposed and extends therefrom,means for rotatively supporting said holding means so that said holdingmeans can be adjusted about a fixed axis relative thereto to any desiredrotative position, said holding means being so arranged relative to saidsupporting means that the holding means is also adjustable in a planealong said axis, and means for securely locking said holding means inany particular adjusted position so as to prevent unintentional movementthereof.

3. A wiplng device of the class described comprising a post member, apliable wiping blade made from resilient material arranged on one end ofsaid post member, means for adjusting the position of said wiping bladein the end of said post member whereby the wiping blade can be adjustedtherein so that the proper amount of wiping blade is exposed and extendstherefrom, means for rotatively supporting said post member so that saidpost member can be adjusted about the fixed axis of said post member toany desired I rotative position, said post member being so arrangedrelative to said supporting means that the post member is alsoadjustable in a plane along said axis, andmeans for securely lockingsaid post member in any particular adjusted-position so as to preventunintentional movement thereof.

- MALCOLM G. MURRAY.

